计量方法在汉语方言关系研究中的运用

一、一种崭新的研究汉语方言关系的方法研究汉语方言关系(这里指的是地域方言),传统上我们使用的是定性的方法,语言学家先设定一些语言特征(这些特征可能是共时的,也可能是历时的):比如古代全浊声母的清化、古入声的归派、动词及其宾语的位置以及词汇系统的使用情况等,然后拿这     

Pedagogic transformation,student-directed design and computational thinking

In a world where technology has become pervasive in our lives, the notion of IT integration in education practice is losing its significance. It is now more appropriate to discuss transforming pedagogy where technology is not considered a tool anymore but part of what we are. To advance this hypothesis, an enterprising, student-directed approach is proposed which embraces problem-solving as activity and computational thinking as knowledge development. In order to test its efficacy, a case study of students developing a 3D virtual space for international collaboration is used to exemplify the transformational pedagogy. From observations of the enactment of heutagogical characteristics and computational thinking, it is argued that we can now teach and learn “in” technology. This modality will come to dominate how technology operates “as” our lives, and become central to what it means to know and learn.     

探析应用型新闻人才“校地”合作培养模式创新--以合肥学院为例

在重新审视新闻专业人才培养现状和应用型新闻人才培养模式的背景下,以合肥学院新闻专业校地合作培养模式具体内容为切入点,深入探索合作模式的创新与实践,不仅能促进应用型新闻人才联合培养机制的创新,也能为新闻专业实践教学的改革提供一些经验。     

The Changing Role of the Local News Media in Enabling Citizens to Engage in Local Democracies

Using Leeds City Council in the United Kingdom as a case study, we analyse comparatively the changing role of local journalism in the public communications and engagement strategies of local government. Drawing on over 20 semi-structured interviews with elected politicians, Council strategists, mainstream journalists, and citizen journalists, the article explores perceptions of the mainstream news media's role versus new modes of communication in engaging and communicating with citizens. We evaluate the Council's perceptions of its online and offline practices of engagement with different publics, and focus in particular on their interactions with journalists, the news media, and citizen journalists. The article considers how moves towards digital modes of engagement are changing perceptions of the professional role orientations of journalists in mediating between the Council and the general public.     

Future Business Innovation in Minority Language Media

This article investigates innovation in the media business models that some European minority-language news organizations are implementing in these times of economic crisis. It entails a shift in the underlying business and service philosophy which interpellates the community and pleads for a change in their mutual relationship. The research is based on the case studies of two private media companies from the Catalan and Basque language media systems that were experiencing economic and financial difficulties. Conducting inspirational advertising campaigns, the news organizations issued a call for readers and non-readers to make a funding commitment to the project, a pledge to provide new revenues and liaisons, while retaining and enhancing the standard income streams. In brief, it is about going back to the basics of active community projects and involvement.     

新世纪新闻学的体系重建与学派拓展

已经有着百年发展历史的中国新闻学,在进入了一个新的世纪之时,需要适应新的社会形势,尤其是要根据新的媒介环境和受众需求加以发展变化。新闻理论的整体性突破和创新首先要从理论的纵深度上尽量向前推进一步;其次要尽量引入新的理论和方法,通过学科交叉开拓理论视野;第三要根据新的媒介发展实际,提出新的概念和开创新的理论体系。尤其要呼唤多元化中国新闻学派的建设,从而彻底打破多年来新闻学的单一框架和体系,实现我国新闻学的真正繁荣,并以完全本土化的面貌以及完全个性化的姿态走向世界新闻学行列。     

高大空间建筑夏季喷口送风系统的吹风感分布

为了研究高大空间建筑喷口送风系统的吹风感分布,在大空间实验室中进行了夏季工况的实验测试,得到了喷口高度为4m时人体活动区域温度场、速度场和吹风感的分布.然后,采用计算流体力学的方法对实验工况进行模拟计算.将室内垂直温度和冷吹风感分布的计算结果和实测数据进行对比验证,结果显示吻合良好.在此基础上进行了不同喷口高度处工况的模拟计算,通过分析3个工况下人体活动区域的吹风感和温度,获得了较理想的送风工况.模拟结果显示,喷口高度为5m时吹风感分布较为理想,温度场和速度场较为均匀.     

Numerical study on effects of door-opening on airflow patterns and dynamic cross-contamination in an ISO class 5 operating room

The contamination diffusion to the operating room when the door is open was simulated with a computational fluid dynamic (CFD) method,to give the extent of the contamination diffusion.The influence of the door-opening procedure was ignored since the door of the operating room is normally a sliding one.The flow field in the case of the 16 s course of opening the door was simulated.The simulated and the experimental results demonstrate that the extent of the contamination diffusion is around 1.5 m when there is no temperature difference between indoor and outdoor,and there is hardly any contamination diffusion when the temperature difference is 1 ℃.It can be concluded that the positive pressure difference in the operating room lost its function in preventing the contamination when the door is open.That the temperature of corridor is lower than that of operating room contributes to contamination control.Keeping 1 ℃ temperature difference between corridor and operating room and increasing positive pressure and air flow are suggested.It is more secure to set up an anteroom if persons come in or out of the operation room at the course of surgery.     

论广播电视新闻学专业实践教学体系的构建

广播电视新闻学具有实践性强、综合化程度高、技术业务发展快的特点,广播电视新闻人才的培养是否成功,很大程度上依赖于实践教学体系能否在传媒发展迅速、技术更新频繁的情况下跟上业界发展步伐。以现代传媒技术技能训练为基础,以新闻采编制作能力培养为主体,以节目创作为提升的三级实践教学体系,为培养掌握传媒技术、熟练新闻业务、具备创新精神的新闻传播人才提供实践教学保证。     

Adaptive lagrange finite element methods for high precision vibrations and piezoelectric acoustic wave computations in SMT structures and plates with nano interfaces

This paper discusses the validity of (adaptive) Lagrange generalized plain finite element method (FEM) and plate element method for accurate analysis of acoustic waves in multi-layered piezoelectric structures with tiny interfaces between metal electrodes and surface mounted piezoelectric substrates. We have come to conclusion that the quantitative relationships between the acoustic and electric fields in a piezoelectric structure can be accurately determined through the proposed finite element methods. The higher-order Lagrange FEM proposed for dynamic piezoelectric computation is proved to be very accurate (prescribed relative error 0.02%–0.04%) and a great improvement in convergence accuracy over the higher order Mindlin plate element method for piezoelectric structural analysis due to the assumptions and corrections in the plate theories. The converged Lagrange finite element methods are compared with the plate element methods and the computed results are in good agreement with available exact and experimental data. The adaptive Lagrange finite element methods and a new FEA computer program developed for macro- and micro-scale analyses are reviewed, and recently extended with great potential to high-precision nano-scale analysis in this paper and the similarities between piezoelectric and seismic wave propagations in layered structures and plates are stressed. Project supported by SRF for ROCS, SEM of China and partially by Zhejiang Provincial Natural Science Foundation (NSF) of China.